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/******************************************************************************
* $Id: atlsci_spheroid.h 10645 2007-01-18 02:22:39Z warmerdam $
*
* Project: Spheroid classes
* Purpose: Provide spheroid lookup table base classes.
* Author: Gillian Walter
*
******************************************************************************
* Copyright (c) 1999, Frank Warmerdam
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
****************************************************************************/
/**********************************************************************/
/* ================================================================== */
/* Spheroid definitions */
/* ================================================================== */
/**********************************************************************/
/* Maximum number of expected spheroids */
# define MAX_RECOGNIZED_SPHEROIDS 256
class SpheroidItem
{
public:
SpheroidItem();
~SpheroidItem();
char *spheroid_name;
double equitorial_radius;
double polar_radius;
double inverse_flattening;
void SetValuesByRadii(const char *spheroidname, double eq_radius, double p_radius);
void SetValuesByEqRadiusAndInvFlattening(const char *spheroidname, double eq_radius, double inverseflattening);
};
class SpheroidList
{
public:
int num_spheroids;
// Acceptable errors for radii, inverse flattening
double epsilonR;
double epsilonI;
SpheroidItem spheroids[MAX_RECOGNIZED_SPHEROIDS];
SpheroidList();
~SpheroidList();
char* GetSpheroidNameByRadii( double eq_radius, double polar_radius );
char* GetSpheroidNameByEqRadiusAndInvFlattening( double eq_radius, double inverse_flatting );
int SpheroidInList( const char *spheroid_name );
double GetSpheroidEqRadius( const char *spheroid_name );
double GetSpheroidPolarRadius( const char *spheroid_name );
double GetSpheroidInverseFlattening( const char *spheroid_name );
};
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